Reflection Of Light Of Spherical Mirror Flashcards
What are concave mirror
Concave mirror caves in
What are convex mirror
Convex mirror bulges out.
What is real image
The image firmed by the actual intersection of light rays
Where can be the real image be located
Real image can be located on screen or by the method of no parallax.
Why are the convex and concave mirrors called spherical mirrors
Because the glass from which they are made is part if the sphere
FOR A CONCAVE MIRROR
If the object is o………..the f………the image is r…….and located in fr…….of the m……
If the object is in…….. or at the f………..the image is v……..and located be……..the mirror.
Outside , focus , real , front , mirror.
Inside , focus , virtual , behind
What is beam of parallel light
Light from any point on a distant object arrives as a beam of parallel light
What is the formula for concave mirror
Real > 1/u+ 1/v=1/f
Virtual > 1/u-1/v =1/f
What is the formula for magnification
v/u ( image distance/object distance)
Uses for concave mirror
Searchlights,,,floodlights, ,,,,dentists mirror or makeup mirror , shaving machine ,,,,,,,, slide projector
FOR A CONVEX MIRROR
The image is always v………and located be……..the mirror.
The image is always d……….. the nearer the object to the bigger the image
Virtual, behind
diminished
Formula for convex mirror
1/u-1/v =-1/f
Uses of convex mirror
The door mirrors of a car, at concealed entrances to give a view of oncoming traffic, in shops to detect shoplifters, in railway stations
What is the pole of the mirror
The centre of spherical mirror
What is centre of curvature
The centre of the sphere from which the mirror is made
What is principal axis or axis
The straight light joining the pole to the centre of curvature
What is focus or focal point
The point halfway between the centre of curvature and the pole
What is focal length
The distance from the focus to the pole
What is magnification
The ratio of the height of the image to the height of the object is called magnification
